Fix a bug in the run_per_host decorator that botched up the list and help commands.
Fix a bug in the run_per_host decorator that botched up the list and help commands.

getsentry/fabric,bitprophet/fabric,kmonsoor/fabric,rbramwell/fabric,mathiasertl/fabric,felix-d/fabric,rodrigc/fabric,simon-engledew/fabric,haridsv/fabric,bitmonk/fabric,jaraco/fabric,TarasRudnyk/fabric,qinrong/fabric,pashinin/fabric,rane-hs/fabric-py3,askulkarni2/fabric,fernandezcuesta/fabric,kxxoling/fabric,cgvarela/fabric,likesxuqiang/fabric,xLegoz/fabric,akaariai/fabric,ploxiln/fabric,tolbkni/fabric,amaniak/fabric,itoed/fabric,tekapo/fabric,elijah513/fabric,pgroudas/fabric,opavader/fabric,raimon49/fabric,ericholscher/fabric,MjAbuz/fabric,sdelements/fabric,bspink/fabric,SamuelMarks/fabric,cmattoon/fabric,StackStorm/fabric,hrubi/fabric